Latest Wearables Technical Articles

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Rotary Controls For Modern Hardware Interfaces

From mechanical latches and liquid flow restrictors to the earliest radio tuners and volume adjusters, rotary controls have been a mainstay of effective interface design. Learn more about rotary controls for modern hardware interfaces.

February 02, 2022 by Max Burk, ALMAX

What Is a Magnetometer?

Learn the basics of magnetometers, including their relation to hysteresis curves and their applications.

March 19, 2021 by Ignacio de Mendizábal

The Incredible Shrinking Resistor: The Advantages and Drawbacks of Ever-Smaller Components

The advantages and disadvantages of ever-shrinking components.

April 19, 2019 by Matthew Cook

How to Choose Microcontroller Peripherals for Digital Signal Processing Applications

This article continues a discussion of microcontroller features and characteristics that are particularly important when you’re thinking in terms of DSP capabilities.

April 08, 2019 by Robert Keim

How to Read a Microcontroller Datasheet: Introduction and First Steps

MCU datasheets sometimes present an overwhelming abundance of facts, figures, and specs. This practical, step-by-step guide will help you to identify and extract the information that you need.

April 01, 2019 by Robert Keim

What Is a Microcontroller? The Defining Characteristics and Architecture of a Common Component

In this article we’ll look at the defining characteristics of these extremely popular ICs, and then we’ll explore the internal architecture.

March 25, 2019 by Robert Keim

Learn RF Design: Choosing the Right RF Transceiver IC

Learn about integrated circuits that can help you to design customized RF communication systems.

August 10, 2018 by Robert Keim

What Is Mutual Inductance? A Guide for Circuit Designers

Learn about mutual inductance and how it can influence an engineer’s approach to circuit and system design.

July 06, 2018 by Robert Keim

How to Select the Cutoff Frequency of Your Low-Pass Filter

This article provides some tips on how to fine-tune the characteristics of a low-pass filter.

June 29, 2018 by Robert Keim

PCB Layout for a Photovoltaic Power Supply for Microcontroller Circuits

This article discusses the PCB layout for a power-supply circuit that generates a regulated 3.3 V rail from a small solar cell.

June 07, 2018 by Robert Keim

Schematic Design for a Solar-Powered Charge-Pump Power Supply Circuit

This article discusses a 3.3 V power-supply circuit that is built around an inductorless DC/DC converter and a solar cell.

June 06, 2018 by Robert Keim

Selecting and Implementing Photovoltaic Cells for Solar-Powered Devices

This article discusses details that will help you choose the right kind of solar cell and successfully incorporate it into your next project.

May 31, 2018 by Robert Keim

The Circuit Designer’s Guide to Photovoltaic Cells for Solar-Powered Devices

This article presents the equivalent circuit for a solar cell and discusses some implementation details.

May 30, 2018 by Robert Keim

The Gentleman Maker’s Auto-Apologizer: A Clever, Polite Device for the Everyday Brit

One of the biggest fears many British people face is forgetting to say sorry. This project is designed to automatically apologize when the user bumps into an object.

March 28, 2018 by Robin Mitchell

How to Reduce Power Consumption with Clock Gating

This article will discuss the basic concepts of clock gating and how it can be used to reduce the power consumption of synchronous digital systems.

March 08, 2018 by Dr. Steve Arar

Capacitive Control Panel PCB Design Considerations for TI’s MSP430FR2633 Microcontroller

This article provides a closer look at the PCB design considerations and programming of a custom capacitive touch interface device.

February 07, 2018 by Mark Hughes

Simplify Your Life with an Analog Window Detector

This article, part of AAC’s Analog Circuit Collection, presents a simple yet effective replacement for ADC-based window detection.

February 02, 2018 by Robert Keim

Building a Capacitive Touch Interface with the Texas Instruments MSP430FR2633

The MSP430FR2633 is a low-power microcontroller with multiple GPIOs and capacitive touch pins. This project creates a circuit that supports a custom capacitive touch panel with LED and haptic feedback.

January 12, 2018 by Mark Hughes

Choosing the Most Suitable MEMS Accelerometer for Your Application: Part 2

In part 2 of this article, we will focus on key specifications and features in the context of wearable devices, condition monitoring, and IoT applications.

December 22, 2017 by Chris Murphy, Analog Devices

The FitByte: How to Make an ATtiny85 Powered Activity Tracking Wearable

This is a protoype of a fitness wearable device designed to vibrate when it detects stagnation.

December 13, 2017 by Demsey Kirkwood